133867044 has 36 divisors (see below), whose sum is σ = 358292844. Its totient is φ = 41997312.

The previous prime is 133867039. The next prime is 133867093. The reversal of 133867044 is 440768331.

It can be written as a sum of positive squares in 2 ways, for example, as 65804544 + 68062500 = 8112^2 + 8250^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108757 + ... + 109980.

It is an arithmetic number, because the mean of its divisors is an integer number (9952579).

Almost surely, 2^133867044 is an apocalyptic number.

It is an amenable number.

133867044 is an abundant number, since it is smaller than the sum of its proper divisors (224425800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133867044 is a wasteful number, since it uses less digits than its factorization.

133867044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218764 (or 218759 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 133867044 is about 11570.0926530430. The cubic root of 133867044 is about 511.5536933054.

The spelling of 133867044 in words is "one hundred thirty-three million, eight hundred sixty-seven thousand, forty-four".